Improved hand-mill



E. ALSOP.

Grinding Miil. I No. 81.574. Patented Sept. 1.1868.

N. PETERS, Phulo-Lilhognpher, Washington, D, C.

TEDWIN ALsoP; oRnEW'Yo K, N. Y.

Letters Patent No. 81,574, dated September 1, 1-868;

IMPROVED HAND-MILL.

dip fittpttlz nfrmh it it tiger titties same no mating and at tip: ante.

TO ALL 'wHoM 1r MAY concerts;

Be it. known that l, EDWIN ALSOP, ofihe city, county, and State of New York, have invented a-new and improved Hand-Mill; and I,do hereby declare that the following is a full, clear, and exact description thereof,

"which will enable others skilled in theart to make and use the same, reference being had to the accompanying drawing, forming a part of this specification. V

The figure is a vertical longitudinal section of my improved mill.

My invention has for its object to furnish a simple, convenient, and effective hand-mill, which shall be so constructed and arranged thatit may be used for grinding coffeeyspices, grain, seeds, dye-stuffs, oil and watercolors, &c., and which shall notbe liable to break or get out of order; and it consists in the construction and combination of the various parts, as'heroinafter more fully described. i

A is the frameof the mill, which is made of wrought iron, andis, consequently, not liable to brcali or get out of order. B is the crank wheel, which is made heavy, so as to act as a fly-wheel. The shaft 0, to which the crank-wheel B is attached, revolves in bearings inth'e frame A, and to its innrend is attached a bevel-gear wheel, D,the teeth of which mesh into the teeth of the bevel-gear wheel E, attached to the vertical shaft '13. The vertical shaft revolves in hearings in the centre of the frame A, and its lower end rests and revolves upon the screw-plugG, as shown in the figure. To the upper end of the shaft is removably attached the grindingcone H, thesurt'acc of which is corrugated, and which is hung upon the upper end of the shaft F in a. manner similar to that in which the runner of a 'set of mill-burrs is hung upon the spindle. This enables the coneH lie-be shifted according to the character of the substance to be ground, or to be convenientlyreplaced'with a new one when worn. y 2 I I is the grinding-cylinder, the inner surface of which is corrugated, as shown in the drawing. The cylinder I is formed slightly tapering, and with a flange upon its lower end, by means of which it is-bolted to the upper part of the frame A." i

J is thehopper, which is made in tbe'shape of an inverted cone, and which is attachedto the upper end of the cylinder I. g

, In the upper part ofthe frame A, just below the base of the grinding-cone H, is formed a chamber, K, into which the material' falls when ground. is a scraper, attached to the vertical shaft F, and which, as the said jshaft revolves, is carried around the chamber K, and scrapes the ground material but through the opening is,

formed in one side of the chamber K, whence it falls into ajsuitable receptacle.

I am aware that the several devices herein described, and mainly, also, their combination, are not new, and I do not, therefore, claim any'of said devices separately, nor their combination; but, having thus described my invention, I i

What I claim as new, and desire to secure by Letters Patent, is-

The arrangement, herein described, of the vertical shaft F, removable grinding-cone H, tapering cylinder I, corrugated vertically on its inside, hoppor J, scraper L, chamber K, with discharge-orifice 7c, wrought-iron frame A, screw-plug G, shaft C, fly-w-heel B, and bevel-gearing D E, for the purpose sct forth.

The above specification of my invention signed by me, this 14th day of May, 1868. p

. I EDWIN ALSOP. Witnesses ALEX. F. Itosnnrs, JAMES T. GRAHAM. 

